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SubjectRe: Suspicious about 2.4.18
On Mon, Mar 18, 2002 at 10:20:50AM +0100, Adam Johansson wrote:
> On Mon, 18 Mar 2002, Michael wrote:
>
> > I'm not really a linux expert, so I can only be suspicious.
>
> Neither am I but I after seeing strange cron-jobs being run in the
> future according to the log,I upgraded to 2.4.19pre3 and all was ok
> again.

Not sure it is quite relevant but...

I had such a weird behavior on my Abit KT7 (with VIA chipsets) based
system: the time often went wild when I started doing heavy I/O between
IDE0 and IDE1... and after that the system had to be restarted :/

The workaround below by Vojtech Pavlik has fixed this issue on my system:

Re: [PATCH] VIA timer fix was removed?
From: Vojtech Pavlik (vojtech@suse.cz)
Date: Mon Nov 12 2001 - 16:58:32 EST

http://www.uwsg.iu.edu/hypermail/linux/kernel/0111.1/0951.html

> > Masquerading of iptables 1.2.5 sudently idles when "iptables -L" shows
> > everything is alright. A realoading of rc.firewall brings everything back to
> > normal. That happened 7 days after a normal operation. I've now upgraded to
> > 1.2.6 and see what happens.
> >
> > Also, crond doesn't seem to operate very precisely. It is sometimes seems
> > idle for 30 minutes.
>
> I tried running this small script under 2.4.18 and noticed very strange
> outputs..
>
> // --- start ---
> #!/bin/tcsh
> while (1)
> date
> end
> // --- end ---
>
> ./timescript > output
>
> output gives me this;
> Fri Mar 15 10:17:12 CET 2002
> Fri Mar 15 10:17:12 CET 2002
> Fri Mar 15 10:17:12 CET 2002
> Fri Mar 15 10:17:12 CET 2002
> Fri Mar 15 10:17:12 CET 2002
> Fri Mar 15 10:17:12 CET 2002
> Fri Mar 15 11:29:43 CET 2002
> Fri Mar 15 11:29:43 CET 2002
> Fri Mar 15 11:29:43 CET 2002
> Fri Mar 15 10:17:13 CET 2002
> Fri Mar 15 10:17:13 CET 2002
> Fri Mar 15 10:17:13 CET 2002
> Fri Mar 15 10:17:13 CET 2002
> Fri Mar 15 10:17:13 CET 2002
> Fri Mar 15 10:17:13 CET 2002
>
>
> Which clearly shows that something is very very strange.
> I've no idea where or why this happens but since upgrading to 2.4.19pre3
> helped I assume that there is something in the kernel that is wrong.
> I run SuSE7.2 with a vanilla 2.4.18 (now 2.4.19pre3).
>
> > I know that these may be application-specific problems, but I was curious if
> > there are any current kernel issues related to them so I can quit searching
> > for another cure.

--
Best regards,
Pierre Lombard
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